1. a very hard, clear precious stone that is used in jewelry and industry
2. a shape with four equal sides that looks like a square turned on its side
3. the area of a baseball field inside the four bases
Usage: baseball

1. shaped like a diamond

Examples

• She wore a beautiful diamond ring on her finger.
• The diamond sparkled in the sunlight.
• The road sign was painted in a bright yellow diamond shape.
• The pitcher threw the ball across the diamond to first base.
• He drew the ace of diamonds from the deck.
• The quilt had a diamond pattern in blue and white.
• Diamonds are formed deep underground under extreme pressure.